1. the Roman god associated with speed, sometimes used as a messenger. He wore winged sandals. Mercury corresponded to the Greek god Hermes.
2. the planet in the solar system with the closest orbit to the Sun, named after the god; represented by ☿.

argh: what a pirate says to express annoyance, dismay, embarrassment or frustration.

MercARGHy!: what a pirate says to express annoyance, dismay, embarrassment or frustration about Mercury.